... steel stripMaterial: ck50,ck60,ck67,ck70,ck75, 50CrV4, 60Si2Mn,AISI420, AISI430Size: 0.15mm to 2.5mm thickness 8mm - 300mm widthSurface finished: bright ... trowel, putty knives, rolling door shutter spring, steel shank, steel toe cap, steel insole, spring metal part, lawn mower blade, wiper ... elongationGood tolerance for thickness controlledColoured Tempred steel strip 50CrV4 alloy spring steel trip